28543230469 has 16 divisors (see below), whose sum is σ = 32939186112. Its totient is φ = 24498955008.

The previous prime is 28543230467. The next prime is 28543230479. The reversal of 28543230469 is 96403234582.

It is a cyclic number.

It is not a de Polignac number, because 28543230469 - 2¹ = 28543230467 is a prime.

It is a super-2 number, since 2×28543230469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28543230467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 759699 + ... + 796384.

It is an arithmetic number, because the mean of its divisors is an integer number (2058699132).

Almost surely, 2^28543230469 is an apocalyptic number.

It is an amenable number.

28543230469 is a deficient number, since it is larger than the sum of its proper divisors (4395955643).

28543230469 is a wasteful number, since it uses less digits than its factorization.

28543230469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556196.

The product of its (nonzero) digits is 1244160, while the sum is 46.

It can be divided in two parts, 2854 and 3230469, that added together give a palindrome (3233323).

The spelling of 28543230469 in words is "twenty-eight billion, five hundred forty-three million, two hundred thirty thousand, four hundred sixty-nine".